Based on historical 98119 data, solar panels that are tilted towards the equator at an angle equal to the latitude will produce the maximum solar energy output in 98119.[1]
The region associated with 98119 has an average monthly Global Horizontal Irradiance (GHI) of 3.46 kilowatt hours per square meter per day (kWh/m2/day), which is approximately 1% less than the average monthly Direct Normal Irradiance (DNI) of 3.5 kWh/m2/day. [1]
Solar installations in 98119 that are always titled at the latitude of Seattle (Average Tilt at Latitude or ATaL) average 3.98 kWh/m2/day, or about 15% greater than the average monthly GHI of 3.46 kWh/m2/day and approximately 14% greater than the average monthly DNI of 3.5 kWh/m2/day. [1]
Solar Energy Glossary
Global Horizontal Irradiance (GHI)
Global Horizontal Irradiance: The total amount of solar radiation that is received per unit area by a surface that is always positioned in a horizontal manner.
Direct Normal Irradiance (DNI)
Direct Normal Irradiance: The total amount of solar radiation received per unit area by a surface that is always perpendicular to the sun rays that come in a straight line from the direction of the sun at its current position in the sky.
Average Tilt at Latitude (ATaL)
Average Tilt at Latitude: The total amount of solar radiation received per unit area by a surface that is tilted toward the equator at an angle equal to the current latitude. ATaL will often produce the optimum energy output.
Solar Radiation Levels in 98119
Solar Radiation Data in 98119
See the chart below for monthly solar radiation levels in 98119.
* Amounts listed in kWh/m2/day (kilowatt hours per square meter per day)
Solar Radiation Analysis for 98119
The region associated with 98119 has a average annual solar radiation value of 4.13 kilowatt hours per square meter per day (kWh/m2/day). [1]
The month with the highest historical solar radition values in 98119 is August with an average of 6.16 kWh/m2/day, followed by July at 6.15 kWh/m2/day and June at 5.87 kWh/m2/day. [1]
The three months that historically average the lowest average solar radiation levels in 98119 are December with an average of 1.79 kWh/m2/day, followed by January with an average of 1.84 kWh/m2/day and November at 2.01 kWh/m2/day. [1]
Solar Power Comparison: 98119 vs. the U.S.
Solar Power Levels in 98119
The average monthly solar radiation level in 98119, of 4.13 kilowatt hours per square meter per day (kWh/m2/day) is approximately 5% greater than the average level of 3.93 kWh/m2/day in a city with historically low levels (WA) and is approximately 38% less than the average level of 6.61 kWh/m2/day in a city with historically high levels (NV). [1]
→ Values listed as 0 (zero) are not available (N/A).
Solar Power: 98119 vs. the U.S.
Below is a month-by-month comparison of how average 98119 solar radiation levels compare to average levels in a city with historcially high levels (NV) and a city with historically low levels (WA). [1]
→ k/m/d = kWh/m2/day = kilowatt hours per square meter per day.
→ Values listed as 0 (zero) are not available (N/A).
We do not have data on solar panel installations in ZIP Code 98119 at the current time.
Solar Power Output in 98119
The Power of Solar in 98119
Monthly AC solar system output averages for 98119. Month-by-month solar power, as ranked by AC output, in 98119. [2]
* Amounts listed in kWhac (kilowatt hours (AC))
Solar Output Analysis for 98119
98119 has a average annual solar AC output value of 4598.9 kilowatt hours (AC). [2]
The month with the highest historical solar power output in 98119 is July with an average of 560.38 kWhac, followed by August at 559.7 kWhac and June at 529.34 kWhac. [2]
The three months that historically average the lowest average solar output levels in 98119 are December with an average of 179.3 kWhac, followed by January with an average of 183.92 kWhac and November at 191.14 kWhac. [2]
Gentle Breeze: 10 mps S
Precip.: Chance of Rain
Humidity: 91%
Cloud cover: 100%
More about 98119
About 98119
The ZIP code 98119 is associated with the city of Seattle in King County in Washington.
98119 Solar Energy & Power
To learn more about solar energy and solar power in 98119, or for more solar-related resources for WA, check out the U.S. Energy Information Administration.
Did you know?
The solar energy that strikes the Earth in one hour could provide all of the Earth's energy needs for a complete year.